 
 <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# music: http://ogp.me/ns/music#">
  <meta property="fb:app_id"       content="<?php echo $facebook_meta['app_id'];?>" /> 
  <meta property="og:type"         content="music.song" /> 
  <meta property="og:url"          content="<?php echo current_url();?>" /> 
  <meta property="og:title"        content="<?php echo $song_meta['strSongTitle'].' by '.$song_meta['strArtist'];?>" /> 
  <meta property="og:image"        content="<?php echo base_url().IMAGE_UPLOAD_DIR.$song_meta['album_art'];?>" /> 